Outlook allows you to create sub-folders inside the Inbox folder to help organize and manage emails. But sometimes, an incompatible PST file or a corrupt Outlook data file (PST) can hide the folders from the navigation pane. You can resolve the subfolder not showing in Outlook PST file issue with a navigation reset, repairing the PST file, or moving to a new fresh Outlook profile.
Why doesn’t your PST file show sub-folders under the Inbox?
The primary reasons for the missing sub-folders are:
- Your current Outlook interface view settings are hiding the folders.
- A corrupt Outlook profile can cause the subfolder not showing in Outlook PST file problem.
- Damage in the PST file can prevent Outlook from accessing the subfolders.
- You are using an older ANSI PST file in modern Outlook.
- Someone or you accidentally deleted your folder or subfolders.
How to fix the ‘PST file doesn’t show sub-folders under Inbox’ error?
You can try the following methods to make the sub-folders reappear in the Outlook PST file.
Method 1: Reset View in Outlook
Sometimes, due to changes in view settings, you might get confused about your subfolders. To fix the problem:
Step 1: Close all instances of Outlook currently running on your system
Step 2: Press Windows key + R. Type “outlook.exe/resetnavpane” and press Enter.
Apart from this, you can also try to reset the folder view from Outlook with these steps:
Step 1: Open Outlook and go to the Inbox folder.
Step 2: Now, click View > Current View > View Settings, and click on the Reset Current View.
Note: Also check for the folders or emails in the Archive folder. If your sub-folders were marked for archiving, they must have automatically moved to the Archive folder.
Method 2: Export PST file to a new PST file
If you are using a legacy ANSI PST file in the modern Outlook (2013 or later), the Outlook may fail to properly read and list all the folders or subfolders. This is a common incompatibility issue. To resolve sub-folders not showing issue, use these steps:
Step 1: Export the PST file to a new PST file using Outlook’s Import/Export.
Step 2: Import the newly created PST into Outlook and verify if the subfolders are visible again.
Warning: Using Outlook’s native method to transform an ANSI PST into a UNICODE PST may give errors. For error-free conversion, I recommend using a professional PST converter tool.
Method 3: Use Scanpst.exe
ScanPST.exe is very helpful when it comes to resolving PST-related issues; it can solve almost any error you might be facing with your PST. All you need to do is run the ScanPST.exe tool and let it repair PST file issues. The steps to do so are:
Note: Close all Outlook instances and find the PST file location before you use ScanPST.exe.
Step 1: Look for the Microsoft Office folder in your system and look for the Scanpst.exe file.
Step 2: Click on the file and run Scanpst.exe.
Step 3: Once the Microsoft Outlook Inbox Repair Windows open, click on the Browse button and select the desired PST.
Step 4: Now, click the Start button.
Step 5: After the scanning, if the tool detects any sort of error, click on the Repair button to start the repairing process.
Step 6: After the repair process, click on OK and start Outlook.
So, this is how Scanpst.exe can help you solve the PST error, but if you still don’t get a solution, then you might need to apply other methods.
Method 4: Create a new Outlook profile
Sometimes, it's not the PST file that is corrupt, but the profile itself. Like in my case, repairing the PST file doesn’t work because there was nothing to fix in it. It was perfectly healthy. So, to confirm my suspicion, I moved the PST to another system and imported it into Outlook. All of the subfolders nested inside the Inbox folder were accessible. Now, I was 100% confident that my Outlook profile was the culprit here. Then, I solved the subfolder not showing in Outlook PST file issue with these steps:
Step 1: Create a new Outlook profile by navigating to the Control Panel > Mail.
Step 2: Configure the new profile and import the PST file into it.
When to seek professional help to overcome issues in the PST file?
If your PST file is deeply corrupted, the ScanPST.exe tool will fail to repair it. To restore your damaged PST to a healthy state, you must use a professional Outlook PST repair software. A specialized tool helps with granular-level repair and can easily restore corrupted objects from the file.
To fix the corruption occurs due to “PST file doesn’t show sub-folders under Inbox” issue, use our Kernel for Outlook PST Repair tool and repair severely corrupted PST files of any size. Moreover, if the sub-folder missing issue is due to accidental data deletion, use the software to retrieve deleted PST mailbox and its subfolders with the original folder structure.
The steps to repair PST files with the tool are:
Step 1: Download, install, and open the tool.
Step 2: Click on Browse button.
Step 3: Add the required PST file and click on Next.
Step 4: The tool will repair the PST file and list them for preview. You can select any folder or email for preview. To export the data, click Save.
Step 5: Choose PST as output type and click Next.
Step 6: Apply filters as required and click Next.
Step 7: Click Browse and specify the location to save the repaired file. Click on Finish to proceed.
Step 8: Once the file is saved, click on Ok.
How to keep your PST files healthy?
Prevention is the best defense against Outlook errors and issues like the “PST file doesn’t show sub-folders under Inbox”. Try these tips to keep your PST file healthy:
- Make sure the PST file size does not exceed the 50GB size limit.
- Avoid abrupt system or Outlook shutdown.
- If you use anti-virus, exclude the PST from real-time scans.
- Avoid storing your primary PSTs on cloud like OneDrive, the real-time sync (cloud) and Outlook’s read/write operations can conflict with each other.
Final Verdict: Resolve sub-folders not showing issue
To solve the “PST file doesn’t show sub-folders under Inbox” issue, start by checking Outlook’s view settings. If you think corruption is the culprit, repair the PST with ScanPST (for minor issues) or the advanced PST Repair tool (for severe corruption).
Frequently Asked Questions
Q: What happens to my emails when I use "resetnavpane"?
A: All your emails and folders in the PST file stay as they are. The /resetnavpane command only clears the navigation pane settings and helps you fix the subfolder not showing in Outlook PST file issue. It doesn’t touch any mailbox items.
Q: Where to find the ScanPST.exe in Office 365?
A: If you use the modern Outlook version (Office 365), go to this location to find ScanPST.exe:
C:\Program Files\Microsoft Office\root\Office16.
Note: The folders might be hidden. To view all hidden folders, click View and enable the Hidden Items option.
Q: How do I know if my PST is ANSI or Unicode?
A: Right-click your Data File in Outlook, select Data File Properties > Advanced. If the "Format" field says "Outlook Data File," it is Unicode. If it says, "Outlook Data File (97-2002)," it is the older ANSI format.
